Finding the Fourth Proportional to 404,030.35, 557,565.50 and 222,748.71

Step by Step Solution

1. Step 1: Write the proportion equation
   404,030.35 : 557,565.50 = 222,748.71 : x
2. Step 2: Convert to fraction form
   404,030.35/557,565.50 = 222,748.71/x
3. Step 3: Cross multiply
   404,030.35x = 557,565.50 × 222,748.71
4. Step 4: Simplify right side
   404,030.35x = 124,196,995,865.51
5. Step 5: Solve for x
   x = 124,196,995,865.51/404,030.35
6. Step 6: Final answer
   x = 307,395.21